Hmmm, it seems to me that CASA has Glen lined up for a TKO, not the other way around. Of course CASA is prepared to "support" someone else writing a cheque to Glen. Trouble is, the Finance Minister generally doesn't write act of grace payment cheques to people for things done to them by corporate entities separate from the Commonwealth, like CASA.
CASA should be writing the cheque and has the capacity to do so. Reimbursing Glen's costs incurred in attending the meeting is 'the right thing to do' rather than a legal obligation in the circumstances. That smells to me very, very much like an 'act of grace' payment by CASA. Either CASA is allowed to make those kinds of voluntary payments or it isn't. The qantum is irrelevant to the principle.
That said, I would be ecstatic to be proved wrong by the Finance Minister writing a cheque for a few million to Glen.